(a) Map of pJM17 plasmid showing HindIII restriction sites. (b) Gel showing HindIII digestion results. There are 10 HindIII restriction endonuclease sites in the pJM17 plasmid. After digestion, it yields 10 fragments (8010, 5446, 5322, 4597, 4370, 3795, 3437, 2937, 2081, and 75 bp). Eight of these fragments from the HindIII-digested pJM17 are readily visualized as bands on 1 % agarose gels after electrophoresis